void Device_Menu(object sender, EventArgs e)
{
var dlg = new SettingsDialog(Settings.Default);
if (dlg.ShowDialog() == DialogResult.OK) {
Settings.Default.Save();
// if settings changed, enter new chatroom
if ((_chatRoom != null) && (_chatRoom.Channel != Settings.Default.Channel ||
_chatRoom.Username != Settings.Default.Username ||
_chatRoom.Password != Settings.Default.Password)) {
_chatRoom.Dispose();
EnterChatroom();
}
}
}